# MAUNAWAI water filter systems > PiPrime gravity filter: powerless, powerful, ideal as a countertop water filter. For clean, living drinking water every day. Discover it now in the shop. *Gravity-fed water filtration system* ## Choose your PiPrime Two versions, perfectly suited to your water quality. Available with an optional hand-engraved Flower of Life **PiPrime K8** — if the tap water is hard Filters and revitalises your water using Pi technology — and noticeably reduces limescale. Features a hand-blown glass jug and filter cartridges to last a whole year. **PiPrime K2** — with soft tap water Filters and revitalises your water using Pi technology — the ideal choice for areas with soft to medium-hard water. Features a hand-blown glass jug and filter cartridges to last a whole year. ## Which PiPrime is right for your water? The PiPrime is available in two versions — depending on the hardness of your tap water. The difference lies in the filter modules, not in the glass container. > Tip: Not sure how hard your water is? Ask your water supplier – or get in touch with us. We’ll be happy to help you choose. ## How PiPrime works: like a water tap in your home In nature, water flows through layers of rock, where it is filtered, enriched with minerals and regains its natural structure. The PiPrime Gravity Filter replicates this exact process in a system that you can simply place on your kitchen worktop. The principle is very simple: you pour tap water into the upper chamber. Gravity then draws it through the natural filter media — without any electricity, pumps or chemicals. As it passes through 21 different types of mineral ceramics, the water is filtered and revitalised layer by layer. The result collects in the lower reservoir, made from hand-blown glass — ready whenever you need it. Water that tastes as fresh as if it came from a mountain spring. ### Ablauf 1. **Fill with tap water** 2. **Filter & regenerate** 3. **21 Mineral ceramics** 4. **Spring water quality** ## Comprehensive filtration. For water you can trust. The PiPrime filters your tap water thoroughly. The combination of a ceramic filter and Pi technology reliably removes: - **Chlorine and chlorine by-products**: for water that tastes naturally fresh - **Heavy metals**: such as lead, copper and mercury - **Pesticides and herbicides**: Agricultural residues - **Drug residues and hormones**: which are being detected in increasing amounts of tap water - **PFAS (forever chemicals)**: persistent industrial chemicals - **microplastics**: invisible particles found in most water supply networks - **Bacteria, sediment and rust particles**: mechanically retained by the ceramic filter - **Lime (Model K8)**: for areas with hard water - **Chlorine and chlorine by-products**: for water that tastes naturally fresh - **Heavy metals**: such as lead, copper and mercury - **Pesticides and herbicides**: Agricultural residues - **Drug residues and hormones**: which are being detected in increasing amounts of tap water - **PFAS (forever chemicals)**: persistent industrial chemicals - **microplastics**: invisible particles found in most water supply networks - **Bacteria, sediment and rust particles**: mechanically retained by the ceramic filter - **Lime (Model K8)**: for areas with hard water > At the same time, valuable minerals are preserved. The water is not merely filtered, but regenerated — it regains its natural, vibrant structure. ## Why families, medical practices and offices choose PiPrime - **No electricity, no water supply**: Simply place the PiPrime wherever you need it. No installation, no technician, no hassle. - **Hand-blown glass container**: No plastic comes into contact with your water. The glass is not only attractive, but also tasteless and durable. - **Pi technology with 21 mineral ceramics**: Your water isn’t just filtered – it’s revitalised. That’s the difference you can taste. - **Long-lasting filter modules**: One set lasts a whole year. Changing it is straightforward and takes just a few minutes. - **Versatile**: Whether in the kitchen, the office, the waiting room at your surgery or when camping — the PiPrime delivers spring-water quality wherever you go. - **Sustainable and plastic-free**: No more water crates and disposable bottles. Spring-water quality straight from the glass. ## Scientifically tested, independently verified > An independent long-term study conducted over a twelve-month period demonstrated that the MAUNAWAI filter system reliably removes heavy metals, pesticides and other pollutants — whilst maintaining consistent filtration performance throughout the entire test period. > — IIREC — Institute for Resonance Phenomena, Graz We would be happy to share the full results of the study with you. Please get in touch. --- [https://www.maunawai.com/index.php/gb/en/cat/maunawai-water-filter-systems](https://www.maunawai.com/index.php/gb/en/cat/maunawai-water-filter-systems)